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9mm Jacketed bullets


bomadera

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You don't need to slug your barrel to find out.  Buy some Precision Delta FMJ-RN at .355 and .356 and see which your pistol shoots better.  Done deal.

If you slugged your barrel and it told you that you should use .355, but .356 ran better, would you run .355 anyway because that's what slugging told you?  Of course not.  

Just buy the two different bullets from PD, same manufacturer, and try them.

 

And for the record, the worse of the two won't be terrible, so it's not like you'll be wasting bullets.  The lesser of the two will still be usable.

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13 minutes ago, IDescribe said:

You don't need to slug your barrel to find out.  Buy some Precision Delta FMJ-RN at .355 and .356 and see which your pistol shoots better.  Done deal.

If you slugged your barrel and it told you that you should use .355, but .356 ran better, would you run .355 anyway because that's what slugging told you?  Of course not.  

Just buy the two different bullets from PD, same manufacturer, and try them.

 

And for the record, the worse of the two won't be terrible, so it's not like you'll be wasting bullets.  The lesser of the two will still be usable.

What he said^

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4 hours ago, bomadera said:

What is the recommended jacketed bullet diameter for 9mm to get the best accuracy, .355 or .356?
Thanks

 

There's no simple answer to this, and diameter might not be as important as we think.

 

What does seem to matter is which specific bullet you select. Generally, flat nose bullets (Flat nose and hollow point) bullet are more accurate than round nose bullets, so that's where I'd start.  

 

Bullets that tend to shoot well include Hornady HAP bullets, with their 125 grain .356 bullets one of the most reliably accurate.  Zero 115 JHP, the conical nose version, also tends to be extremely accurate. Hornady's 147 XTP also stands out.  A less expensive bullet to try would be RMR's 124 FMJ FP Match Winner.

 

Then you need to match them with the right powder. In 9mm, Power Pistol does really well, as does A#7 and Silhouette. Sport Pistol seems to work well with some loads too. There are probably others. 

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